– Discuussion: – axillary nerve (C5, C6) originates from and passes backward from posterior cord of brachial plexus – at level of axilla; – it arises immediately posterior to the coracoid process and conjoined tendon; – it crosses the inferolateral surface of the subscapularis, 3-5 mm medial to the musculotendinous border; – sweeping a finger … Read more
– Discussion: – best true lateral view of shoulder; – Allows Evaluation of: – head compression frx: (allows assessment of presence and size); – lesser tuberosity – lesser tuberosity is seen anteriorly as a small inverted V on anterior surface of the humeral head; … Read more
Origin: tip of coracoid process on scapula; Insertion: middle of medial border of humerus, opposite deltoid tuberosity; action: horizontal flexion and adduction of the humerus at the shoulder; synergists: pectoralis major, biceps brachi, and anterior deltoid; nerve supply: musculocutaneous, C6, C7; – Surgical Hazards: – profunda gives off muscular branches, usually gives rise to … Read more
Anatomy: coracoid process can be palpated thru anterior deltoid muscle one to two finger breadths below outer portion of clavicle; one finger breadth lateral to coracoid is the GHJ; provides a palpable guide to deltopectoral groove; serves as an anchor for coracoid muscles (coracobrachialis & short head of biceps) that separate lateral safe side from medial … Read more
– Discussion: – coronoid helps to resist varus stress and posterior elbow subluxation (radial head also resists posterior subluxation); – pivotal role as an anterior buttress; – at least 50% of the coronoid must be present for the ulno-humeral joint to have normal function (i.e., for joint to be stable); … Read more
– Hematoma: – Infection associated with hematoma formation after shoulder arthroplasty – Fractures – fractures may occur at the tip of the prosthesis; – long oblique and spiral fractures can be treated non operatively as long as good alignment is maintained; – transverse or short oblique fractures may not … Read more
– Discussion: – dislocations of the elbow associated with fracture are termed complex; – comprimise 49% of elbow dislocations; – most of these fractures are inherently unstable and require surgery; – prolonged elbow immobilization produces poor results. – surgery must achieve sufficient stability to allow … Read more
– See: Extra-articular Manifestations – Discussion: – manifests itself in one of three typical forms: – acute hemarthrosis; – subacute hemarthropathy; – chronic hemarthropathy; – severity of hemophilia A depends upon level of factor VIII clotting activity; – severe deficiency: – factor VIII activity level of < 1%; – pt characteristically bleeds into joints or … Read more
– Fracture: Mid Shaft: – Implants: – 3.5 mm reconstruction plate; – 3.5 mm DCP or LC-DCP; – Fractures: Neer type II (lateral) – Implants: – small T plate: – tension band figure … Read more
– See: – Clavicular Frx in Children / Congential Pseudoarthrosis of Clavicle – AC joint / Sternoclavicular Joint Injury / Scapula Fracture – Discussion and Classification – Exam Findings: – brachial plexus – ref: Injury to the brachial plexus by a fragment of bone after fracture of the clavicle – Radiology: – Serendipity View – best visualized sitting up … Read more